and the big fireworks show will start around 9:15. don't forget the smithsonian, metro, and most roads around the national mall will be closed. and as always, you can go to nbcwashington.com for more information. >>> to orlando now, where there was berating, laughing, and crying today during the closing arguments of the casey anthony murder trial. attorneys had another showdown inside that courtroom. jay gray was there and has more on that tonight. >> reporter: with pictures and video of caylee anthony framing his closing arguments, prosecutor jeff ashton described a web of lies the state alleges led to the little girl's death. >> casey anthony maintains her lies until they absolutely cannot be maintained anymore. >> reporter: and provided a day-by-day narrative of how they believe it happened. >> because she knew that that night she would be in the arms of her boyfriend and that caylee would be dead. >> the way the case was presented -- >> reporter: defense attorney jose baez fired back. >> if you hate her, if you think she's a lying